Hose-coupling.



E J. LOMBARD & O. L. KROGSTAD. HOSE COUPLING.

APPLICATIONFILED NOV. 27, 1911 1,055,477, P11611181 Mar. 11,1913.

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E. J. LOMBARD & O. L. KROGSTAD.

HOSE COUPLING. APPLICATION FILED 11017.27, 1911 1,055,477., P11tented Man1L1'913.

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EUGENE J. LOMBARD AND OLE L. KROGS'ZIJAD- OF HUDSON, WISCONSIN.

HOSE-COUPLING.

To all whom it may concern 1 Be it known that we, EUGENE J. Lonnsaeo and OLE L. Knoos'ran, citizens of the United States, residing at Hudson, in the county of St. Croix and State of Vtisconsin, have invented a new and useful Improvement in Hose-Couplings, of which the following is a specification.

, coupling-when placed in position freely by with the hose.

hand.

The parts are so designed that the wearing of the joint faces does not interfere with its eiiiciencyand the joint closing parts ar simple in structure, having no springs o similar wear parts to-get outof order.

In the drawings with which we have illus trated our invention and which form a part of this specification. Figure 1 is a plan view of two hose ends joined by our device; Fig. 2 is a section on the line X--X, Fig. 1 showing the operating parts in section, and Fig. 3 is a fragmentary view of the socketed con-- tact part showing a plan of the retaining spring.

In the above drawings are illustrated coupling parts A connected to hose B such as is commonly used on air and steam lines for trains but which may be used for steam. air or liquid as desired, under pressure. Each ,goupling part A consists of a casing 2 into "which the hose B- is threaded in any suitable manner. An air chamber 3 occupies the body of the casing 2 and communicates Opposite to the hose communication, chamber 3 opens on the face of the casing by a passageway l. Thepassageway 4 is enlarged at the face of t-he'casing to form a sphericaljoint with a contact piece 5 which is freely positioned in the passageway to make a close joint with the wall of the casing through a small angular rotation. The contact piece 5 has a substantially cylindrical passageway (3 extending through it and registering with the passageway to communicate with the chamber 3 and hose B. V a A spring 7 has extremities engaging reother.

Specification of Letters Patent. Patented Mar, 11 1%13. Application filed November 27, 1911 Serial No. 662,757.

cesses 8 in the passageway of the contact piece 5. The spring extends into the chamher 3 and is formed with curved sides which are adapted to engage the shoulder 9 between the passageway 4 and the chamber 3 to retain the contact piece 5 in operative position.

Above the chamber 3 in casing 2 is formed a cylinder 10 in which is movable piston.

11 provided with a packing ring 12. A piston rod 13 connectedwith the piston 11 extends through a bushing 1 to the exterior of the cylinder 10 and carries a cross head or equalizer 15 pivoted thereto on a cotter 16. One endof the equalizer 15 carries a link 17 pivoted thereon and fastened by a cotter pin 18. The opposite end of the link 17 is formed with an open hook 19 adapted to hook over the end of an equalizer identical with that on which the linkismounted. The inner end-of the cylinder chamber 10 communicates with the chamber 3 through a passageway 20 and air pressure in the hose B and chamber 3 is communicated to the cylinder 10 to produce movement ofthe pis- .ton 11 therein. One side of the casing 2 is provided with a grooved lug 21 having a curved face 22 concave toward the hose connection of the part. The lower part of the face 22 extends below the center line of. the passageway 4 in the normal position of the coupling parts. On the side of the cash) 2 opposite to the lug 21 is formed an ar 1 25 projecting away from the hose connect m of the casing and outside of the casing f a connected coupling part. At its extrmiity the arm 25 carries a grooved lug 26 having its grooved face 27 substantially straight and slightly beveled with respect to the axis of the passageway 4. The face 27 is adapted to engage the face 22 of a similar coupling part placed in opposed position with the contact pieces 5 adjacentto each It is evident that the two arms 25 may engage the lugs 21 simultaneously to connect the two coupling parts, the curved form of the faces 22 permitting this con-- i ection to be made by an angular movement if the parts A in the plane of the grooves of passageways 6, adapting the faces to produce an air tight omt'when pressed to gether with sutllcient force The spherical shape of the mounting-of the contact pieces in t.e casing 2 permits the perfect contact of the faces in any position of the two parts A which the parts can normally assume when connected. The. curved face 22 of the lug 21 on each part A has such a form that the lug 26 engaging it may be rotated slightly on Kin point of contact. The lug parts are so forinedthat their point cl Contact lies below the of the paesne'c ways l and 6- and movementot the upper portions of the coupling parts -i toward each other produces a tightening of the joint between the faces of the coniact pieces 5 and seats the contact pieces more firmly in the casings 2.

The tightening movement of the coupling parts A is secured h the action oi the pistons 11. The linl: lT connected with the equalizer 13 on each piston ll is hooked over the free end of the equalizer on the other part A. in the cmnirctr-d position of the coupling pails. 'lhe loose conneciimi oi the two parls prevents the escape of steam or air to a' large extent and the presaure secured in this Way in the chambers 3 tort-ea fluid "through the paesagew'. s into the piston chambers 10 and produces a moreinent oi the piston chambers. with relation to the pistons. The pistons are connected as described by the links 17 preventing their relative movement and the pressure of fluid the piston chambers causes the i'i'iorenicnt of: the piston chai'nbers Wltll relation to each other and the forcing together of the joints or the Contact pieces 5.

in one side of each coupling part A i;-

=inonnted a relief valve (1 opening into the chamber and through any suitable apertures such The relief valve (1 or din-arily in the form of a check valve pie renting outward movement of fluid and permitting the inl'lmr of air intwthe hose ii and connecting parts when cut oil' from the steam supply in the steam line.

In. a cordance with the patent statutes are have described the principles of opera .tion of our invention together with the an paratne which we now coneider to represent the best embodiment thereof: but we llPSllO to have it understood that the COUSiL'iUClEOH shown is onl illustrator and ii at. the invention can be carried out by other means and applied to uses other than those zhovc set forth \Ylilllll the scope of the following claims.

Having described our invention, Wh t we claim as new and desire to protect liy Letters Patentis:-

.1. A hose coupling; coinprieing a pair of detachable members having passages adapt ed to interconnect and form a duct for a pressure supply f'OlliflCiT pieces freely scaled in the abutting end faces of said members and adapted to form a tight joint around said duct, fulcrnn'is adapted to interconnect on the sides of said members and cause said contact pieces to swing together said men'ibers being formed with opposed cylinders having ports in their adjacent ends leading; into said duct. pistons in said cylinders and link connections scparahly on heeled with said pistonfi. said pistons and cylii/iders being so positioned as regards said iiulcrlnne as to cause by outward longitudinal movement of said pistons, said contact pieces to he tilted together under the action of a lever actuated by force derived automatically from said duct! tudinally disposed dctachahle parts having passages adapted to be connected with a source of pressure supply, said parts haring; contact "pieces scaled in the end faces thereof and adapted to impinge endwise together and said parts being formed with lateral fulcrnms adapted to interconnect on their sides in position to cause said contact pieces to impinge. together and with upwardly projecting portions communicating by duets with said passages, longitudinal hook hold ere scparahly securing sazd detachable parts together above said contact pieces to limit longitudinal spreading movementoif said parts, and means on said projecting poi tions operated by said pressure supply and acting; against said holders to tilt and hold said contact pieces longitudinally together under lever action.

In lcstimony whereof, We have eigned our names to this specification, in the presence of two subscribing witnesses.

EUGENE J. LOlElBBiRD OLE L. KRGGSTAU.

2. fl hose coupling comprising two longi- W itncsees:

G. N. 13151.1, 0. J. MURPHY. 

